Her Backstory: Several times a week, Jaclyn, 22, drives to a tanning salon, strips down, and lies on a bed lined with 100-watt UV bulbs for 15 minutes. It's a routine she's been loyal to since her senior year in high school. "I hate being pale," she says. "It makes me feel ghostly and sick. I look healthier with a tan." But what about the potential effects on her skin—the age spots, the wrinkles, the cancer? "By the time I have to worry about that, they'll have something to fix it."